The Google toolbar is a free tool you can download. It becomes part of your browser toolbar. It’s most useful features are it’s PageRank display (which allows you to view the PR of any site you visit) and it’s AutoFill function (when you’re filling out an online form, you can click AutoFill, and it enters all the standard information automatically, including Name, Address, Zip code/Postcode, Phone Number, Email Address, Business Name, Credit Card Number (password protected), etc.)

Once you’ve downloaded and installed the toolbar, you may need to set up how you’d like it to look and work by clicking Options (setup is very easy). NOTE: Google does record some information (mostly regarding sites visited).

Toolbars are also offered by many other search engines (eg. Yahoo) and websites but the Google Toolbar is probably the most common. It comes as part of the ever popular FireFox browser.